Calk-grinder.



No. 876,224. PATENTED JAN. 7, 1908'.

D. O'NEILL. G-ALK GRINDER.

APPLICATION nun JULY 8. 1907.

2 sums-sum 1.

W/TNESSES INVENTOI'? JW 6. 96m, DANIEL EI'NE1 L om .0 9 1 A .N A J D E T .N E m A MDm A 4 2 w 6 7 8 N 2 SHEETS-SHEET 2.

lNVE/YTOR DANIEL I] NEILL ATTORNEYS WITNESSES DANIEL ONEILL, or LUOINDA, PENNSYLVANIA.

(TALK-GRINDER.

Specification of Letters Patent.

Patented Jan. 7, 1908.

Application filed July 8- 1907- Serial No. 382-603- To alliwhom' it marl concern:

Be it known that I, DANIEL ONEIiL, a cltizen of the United States, and a resident of Lucinda, in the countyof Clarion and State of Pennsylvania, havemvented certain new and useful Im rovements in Calk-Grinders,

of Whichthe fo lowing is a specification.

-My invention 18 an improvement in calk grinders; and consists in certain novel construqtions and combinations of parts as will be hereinafter described and clalmed.

Referring to the drawings forming a part hereof Figure 1 is a side view of the improvement and its operating mechanism. Fig. 2

is a central longitudinal section through the grinderf The present embodiment of my invention is adapted to be driven by power and consists of an emery wheel 1 of frusto-conical shape secured in any suitable manner to the end of a shaft 2 which is provided adjacent to the emery wheel with a cone shape bearing sleeve 3 adapted .to be received in a cone shape bearing 4 in a bar 5, provided on each end with transverse grips 6. l

A collar 7 is arranged onthe shaft on the "o posite side of the grip bar from the emery w eel to retain the bearing surfaces of the sleeve and the bar in proper contact, and the collar is secured n place by a nut 8 which in turn is locked by a locking nut 9.

The grips 6 are ofanysuitable materiaL and of the shape shown in Fig. 3, and are provided with a transverse conical opening 10 therethrough for receiving the conical end of the grip bar, the said bar being pro- .vided with a collar 11 on the inner side of the -grip,.the said grip being countersunk to receive the collar and a nut 12, which is thread- .ed onto the end of the bar for retaining the grip place. I

he end of the shaft opposite to the emery wheel is intended to be connected with a flexible shaft 13, and the flexible shaftis connected by its other end with a shaft 14 join"- naled in aframe-work 15 comprising sides composed of U shape members 16, having their arms connected by suitable cross-bars 17. The shaft 14 is provided with a pinion 18, meshing with a gear wheel 19 on a shaft 20 -ournaled in the cross-bars, and the shaft 20 is provided with a pinion 21 meshing with a gear wheel 22 on a third shaft 23'.

The shaft 23 is provided with a pmion 24 meshing with a gear wheel 25 on a shaft 26, which 1n turn is provided with a pinion 27 meshing with a gear wheel 28, on a driving shaft 29 provided on its outer ends with member are provided with setscrews 32.

whereby to secure the frame-work to any suitable support.

In the operation of the machine the framework is secured to any suitable support and the shaft 2 is connected with the flexible shaft 13. v I

The grinding device is held by the grips with the emery wheel towards the operator, and so applied to the calks, thebeveled or conical surface of the wheel being used to grind the inclined or beveled portion of the toe calks, while the base of the wheel is used to rind the flat side of the toe calks. The hee calks are ground in the same manner, the baseof the wheel being used, however, for the inclined face of the said calks.

I claim- 1. The combination with an operating mechanism, of a calk grinder comprising a shaft provided on one end with a frusto-conical emery wheel, a conical bearing sleeve on the shaft, a transverse grip bar provided with a conical bearing for receiving the sleeve, a collar for retaining the parts in osition, nuts on the shaft for locking the col ar, said grip bar'having conical ends, grips having conical-- openings for .receiving the ends, nuts threadeiLQL the ends of the bar for securing the grips in place, and a flexible shaft connecting the emery wheel shaft and the operating mechanism.

2. The combination with an operating mechanism, of a c'alk grinder comprising a shaft provided on one end with a frusto-conical emery wheel, aconical bearing sleeve on the shaft, a transverse grip bar provided with a conical bearing for receiving the sleeve, means for retaining the bearing surfaces in contact, saidg ip bar having conical ends, grips having conical'o enings for receiving the ends, nuts threadec. on the ends of the grip bar for securing the grips in place, and a flexible shaft connecting the operating mech anism with the emery wheel'shaft.

3. The combination with the operating the grips and a flexible "eramng mechamsm Wit.

TIL: QNEILL.

mechanism, 2 calk grinder comp-rising; a aft provided on one end with an. emery Whii, a. grip bar in which the shaft is jaulnaied, grip on each and (3f be 0211', said grip bar haw ing conical ends, and the grips having cozy i221 openings for receiving the ends, said. grip bar-having iniegral washers for limiting the 

